How do you find the constant of proportionality in the equation y = kx?

It is the product of x and y
It is the coefficient of x (k)
It is the variable y
It is the sum of x and y

1 answer

In the equation \( y = kx \), the constant of proportionality is the coefficient of \( x \), which is \( k \).

So, the correct answer is: It is the coefficient of x (k).